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The Virtual File System Structure ,[object Object],[object Object],[object Object],[object Object]

Hệ thống tập tin EXT2 ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

I-Node and Data block in EXT2 FS

I-Node and Data block in EXT2 FS ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

I-Node and Data block in EXT2 FS ,[object Object],[object Object],[object Object],[object Object]

Directories in EXT2 FS Directories are implemented as a special type of files . Actually, a directory is a file containing a list of entries . Each entry contains an inode number and a file name .

Link (Liên kết) ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Hard Link – Symbolic Link ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Permissions The first item, which specifies the file type, can show one of the following: d : a directory - (dash) : a regular file (rather than directory or link) l : a symbolic link to another program or file Beyond the first item, in each of the following three sets, you will see one of the following: r : file can be read w : file can be written to x : file can be executed (if it is a program) - ( rw- ) ( rw- ) ( r-- ) 1 sam sam | | | | Type owner group others

Using File System Commands chmod ,[object Object],[object Object],[object Object]

Chmod : Using a flag method ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Chmod : Using a flag method ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Changing Permissions With Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],For sneakers.txt , here are the numerical permissions settings: - ( r w - ) ( r w - ) ( r - - ) | | | 4+2+0 4+2+0 4+0+0

Changing Permissions With Numbers ,[object Object],[object Object]

Changing Permissions With Numbers ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

[object Object],Lệnh umask : Quyền hạn mặc định ví dụ : file.txt có quyền hạn mặc định là 664 ; folder là 775

Lệnh umask : Quyền hạn mặc định ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Sticky bit ,[object Object],[object Object],[object Object]

Sticky bit ,[object Object],[object Object]

The Root Directory ,[object Object]

Running Programs at Boot Time ,[object Object],[object Object]

Users and Groups ,[object Object],[object Object],[object Object],[object Object],[object Object]

User and Group Management Tools ,[object Object],[object Object],[object Object],[object Object]

Adding a User ,[object Object],[object Object],[object Object]

The command line options for useradd ,[object Object],[object Object],[object Object],[object Object],[object Object]

The command line options for useradd ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Delete a user account - userdel ,[object Object],[object Object],[object Object]

Modify a user account - usermod ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Modify a user account - usermod ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Modify a user account - usermod ,[object Object],[object Object],[object Object],[object Object]

change Command Line Options ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Adding a Group ,[object Object],[object Object]

User Private Groups ,[object Object],[object Object],[object Object],[object Object]

Group Directories ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

/etc/passwd ,[object Object],[object Object],[object Object],[object Object],[object Object]

/etc/shadow ,[object Object],[object Object],[object Object]

Determining Your IP Address ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Changing Your IP Address ,[object Object],[object Object],[object Object],[object Object]

Interface Configuration Files ,[object Object],[object Object]

Example configuration file ,[object Object],[object Object],[object Object],[object Object]

the configurable parameters in an Ethernet interface configuration file ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

the configurable parameters in an Ethernet interface configuration file ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Interface Control Scripts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

How To Change Your Default Gateway ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

/etc/sysconfig/network ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

To Change The Duplex Setting Of Your NIC ,[object Object],[object Object],[object Object],[object Object]

To Change The Duplex Setting Of Your NIC ,[object Object],[object Object],[object Object]

Configuring Your /etc/hosts File ,[object Object],[object Object],[object Object],[object Object]

Configuring Your /etc/hosts File ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

The Loopback Interface's Localhost Entry ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

GUI Network Configuration ,[object Object],[object Object]

Overview ,[object Object],[object Object],[object Object],[object Object],[object Object]

Establishing an Ethernet Connection ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Establishing an Ethernet Connection ,[object Object],[object Object]

Establishing an Ethernet Connection ,[object Object]

Establishing an Ethernet Connection ,[object Object],[object Object],[object Object],[object Object]

Managing Hosts ,[object Object],[object Object]

Activating Devices ,[object Object],[object Object]

Device Aliases ,[object Object],[object Object],[object Object],[object Object]

Activating Devices To verify that the alias has been activated, use the command ifconfig. The output should show the device and the device alias with different IP address

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